Demountable wheel-rim.



H. J. MORTENSEN.

DEMUUXTABLE WHEEL RIM.

Armxunmn nun nov. a was Patented May 3, 1910.

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ijf' wig H. J. MORTENSEN.

DEMOUNTABLE WHEEL RIM.

, APPLICATION FILED NOV.B.1909 957,080.

Patented May 3, 1910.

2 SKZETB-BBEIIT 2.

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HARRY -T. MORTENSEN, OF OAKLAND. CALIFORNIA.

DEMOUNTABLE WHEEL-RIM.

Specification 0! Letters Patent.

Patented May 3, 1910.

Application tiled November 8, 1909. Serial No. 528.743.

, I I'o all whom it may co'nrern.

Be it known that l. HARRY J. Mon'rtmssx.

a citizen of the-United States, l't' 'itlll l{I at (.laiclaud. in the countyot' Alameda and State of ('alitornta. have invented new and useful of which the following is-a specification.

My inv ntion relates to improvements in wheel rims, and is particularly applicable to rims which are designed to carry an in flated pneumatic tire ready for use; and it consists in a novel means hr rapidly (ingaging or disengaging the complete structure to or trom the wheel proper.

The invention consists in a combination of parts. and in details of construction which will be more fully explained by reference to i seated, and by suitable means he structure the accompairving drawings, in which- Figure 1 is anew of the assembled wh el I and rim. Fig. 2 is a transverse section. Fig. I is a perspective view of one of the holding clamps. Fig. 4 is a side sectional view of the demountahle rim sections. band. and lock. Fig. 5 is a ,lan View of the same.

' Fig. 6 is a sectional detail of the lock.

In the. construction of wheels adapted to carry pneumatic or other removable tires, it has been found desirable, especially for the latter class of tires, to mount the fullyintlated tires upon a rim which is provided with means by which it can be rapidly attached to and detached from the wheel, and various devices have been employed for this purpose.

In my invention, the wheel may be of any well known or suitable description having a substantially cylindrical encircling rim 1!. This tire or band is adapted to rec ive the rim which carries the pneumatic tire 3. This rim is made in a sufiieient number of sect ions 4 to form a complete annulus which i." "tted upon the periphery .2 of the. wheel. These sections are made with an inwardly curved llangc 4' upon one edge,

. and this flange serves to receive and retain one of the interlocking ribs or beads the pneumatic tire .l. The opposite edges of these sections are turned up sullicienily to lieep the tire-engagin; ring 5 in positior, but not enough to prevent the sections 4 being easily disengaged and removed toward the inside. Th riu 5 has its outer edge ('Ill'\'t(l over sullieiently to engage and hold one rib of the tire, while the other tire. rib is retained by the flanges l of the sec.- tions 4. If both flanges were formed rigidly dinproreinents in l)emom table Wheel-Rims,

Eupon the rim sections 4, and curved in t wardly, it would be ditlicult to assemble or sepwate the pai ts on account of the stillness of the tire )lbliC, but in this construcrim sections when disengaged, may be drawn l l i tion, itwill be won that one edge of the l I inwardly, away from the ring 5, pivoting 0r 1 turning as it were about. he incurred portion 4, see Fig. In order to retain these sections 4 in relative position, and to lock them in place so that this rim and the inthe wheel, I employ a band (3 which is preferably made of steel, and of such size that when the run sections are in position to form ,a complete annulus. this. band fits in the to the w bottom of the channel in which the tire is is iven the tension which makes it ri id ant complete, and in readiness to be applied l l l 1 fiated tire would be. in readiness to apply to l i reel without anr disturbance of its own elements. Theband is preferably fixed permanently to one of the sections: the other sections being loose within it. These sections are placed in position, with their ends abutting, until the whole interior of the band has been tilled with the. sections.

.\s there must be an allowance made for the sections to be placed, l have shown a slide 7 fitted into a channel 3 which is made near the end of one of the meeting ections. The slide is lixmi to and movable 1th the end of the band, opposite to the one which is fixed to the section as previously described.-

9 is an eccentric or cam turnable in a space 10 which is formed between the slide 7 and the contiguous end of the channel 8. It will be seen that by tin-nin this eccentric in one direction, the slide will be. allowed to move in the channel so as to release the constriction of the band it on the sections 4, and thus allow them to e readily removed.

The rim and tire may be assembled as follows: he section 4. to which the band is fixed, is conveniently placed, the tire valve stem inserted into the hole 11, and one edge of the tire Ill) is ressed into place within the turned-over flange 4 of that section. The "in; 5 is next placed to engage with the Opposite tire rib. The suecer-ding' iutlated in readiness for u e.

a screw-driver, or other suitable tool, and the band (i thus tightened to hold all parts firmly together after which the tire may be The ends of the sections may be formed in any plane, or in any suitable manner to insure 'neir abutting so as to form a smooth and emtinuous annulus when in posit on. In order to S8- cnre'this deniountable structure to the telly of the wheel. clamps t2. the side of wh ch tit snuglv against the sides of the telly of the wheel, and tile uniting por ion extends across within the telly. as plainly shown in Figs. 1 and 2. Holes are made centrally through this portion of the clamp and bolts 13 which a re fixed in the wheel telly, project through these holes and have scrmv-threaded outer ends adapted to receive nuts 14. \Vhen these nuts are partly unscrewed. the clamps may ,be drawn inwardly so as to allow the deinountable. rim to he slipped into place on the exterior rim .2 of the wheel; then by turning, the nuts. the clamps are forced outwardly so as to engage with the rim sections These clamps have their edges beveled or otherwise suitably formed so as to engage with corresponding grooves or notches in the rim sections 4. as plainly shown at 15. Fiq. 'hen all of th se nuts have been screwed up. and the parts fully engaged. the wheel. with its rim and tire. will be practically a Full-1i unitary stru.':ture, capable of withstanding the hardest usage.

If by accident. or for other reason, it is lil' 't... r v to remove or replace a tire, it is only necessary to loo-en the nuts and ret have shown a series of;

tract the clamps, wh n a new rim andJlire alr ady prepared. may be in erted to replacethe injured one; the work being very rapidly emnph-ted. The -llfll'zltltm and Ieino\'- 2 ing of the rim sections. tire and parts, which go to make up the rim, may be ell'ected at. any time in .the manner previously describ d. A fillin e segment may be inserted. a shown at 17, to close the space which necessary in applying or removing a rim.

In order to insure th easy assembling of the segments it may b necessary to use a tool having, an edge, such as a scruv-driver. I havetherct'ore shown a lug l8 projecting from the section contiguous to the lock. and this lug serves as a fulcrum between which and the opposed edge, the tool may act. to insure the assembling of the parts.

It will be understood that any equivalent or suitable locking device. may be substituted for the eccentric without changing the character of my invention.

Having thus described my invention, what I claim and desire to secure by L tters I'mout is l. The coinbinatizm with a wheel. of a rim formed of sections, a band surrounding said sections baring one end secured to one of the s ctions, and means engaging th other end ofthe band for conz trietin; the band and h lding th sections in interloeloal position.

J. The combination with a wheel ot' a rim f rm d of a series of removabl) cured sections, a band Cllttllltl tftlltillfl the rim having one end secured to onev of said se tions and ha \'in; th opp site end free. and mean en5 'a; in; the free end of the band for mo ing: the same and thereby con tricting said band about the sections and holding the latter in interioelt'ed posi 'on.

3. demonntable rim consi tin; of ee-- tions forming an annulus and having flanges at the sides, an inclosing baud having one end fixed and the other movab e whereby the band is constricted about the sections, mean ca rried by one of the st tions and engaging the. free end of the band for constricting and expanding the band.

4. The combination with a wheel, of a rim formed of segments. the meeting ends of which are adapted to engage to form a continuous annulus. a band surroutulin; said rim -ectious having one end fixed to one of the section a slide with which the opposite end is connected. and means to move said slide to cause the hand to compress and hold the section A deinountable rim musisting of segm ntal se tions havin; a tire-engaging flange on one edge. and a continuous surrounding. movable. opposing tiroeugaging flange. an int-lo ing tlat band havin; one end fixed to one t tln 1-ctiol| ,a movable slide to whi h the other end is attached, and means to on -trier and lock the band about the section 6. A demountabhrim consisting of flanged segmental M't'finlb engageable to fOrm an annulus. an int-losing hand having one end fixed to one of the sections, means to constrict the band about. the sections, and a lug i q, \\'hil'h a tool may act. to engage the final section.

In testimony whereof I have hereunto set my hand in the pres-cure of two subscribing wit ne ses.

HARRY J. MORTENSEN. \V i t nesses:

Gun. II. 'rnoxc,

lm'iuoxn A. Licoixauu, 

